卷材防水屋面水泥砂浆找平层技术要求有哪些

If you go into the forest with friends, stay with them. If you don’t, you may get lost. Sit down and stay where you are. Don’t try to find your friends, but let them find you instead（相反）. You can help them find you by（通过）staying in one place. There is another way to help your friends or other people to find you. You can shout or whistle（吹口哨）three times. Stop for a while. Then shout or whistle three times again. Any signal（信号）given three times is a help.

Keep up shouting or whistling. Always three times together. When people hear you, they will know that you are not just making a noise for fun. They will let you know that they have heard your signal. They will give you two shouts or two whistles. When a signal is given twice, it is an answer to a call for help.

If you don’t think that you will get help before night comes, try to make a little house with branches（树枝）. Make yourself a bed with leaves and grass.

When you need some water, you have to leave your little branch house to look for it. Don’t just walk away. Pick off small branches and drop（扔下）them as you walk in order to（为了，以便于）go back again easily. When you are lost, the most important thing to do is stay in one place.

小题1: If you get lost in the forest, you should               .

A．try to find your friends

B．stay in one place and make signals

C．walk around the forest

D．shout as loudly as possible小题2: Which signal is a call for help?

A．Shouting here and there.

B．Crying and shouting twice.

C．Shouting or whistling three times together.

D．Whistling everywhere in the forest.小题3: When you hear two shouts or two whistles, you know that          .     

A．someone is afraid of an animal.

B．people will come to help you.

C．someone needs help.

D．something terrible will happen.小题4:Which of the following statement is RIGHT?

A．If you get lost in the forest, you should try your best to find your friends.

B．When you hear whistles for twice, that means someone needs help.

C．If you leave branches to look for water, you can find your way back easily.

D．When you are lost, the important thing to do is to cry.小题5: What’s the meaning of the underlined sentence（画线句子）？

A．leave branches to find your way back.

B．Pick off branches to build another house.

C．Use branches to make a bed.

D．Drop branches to look for water.

对社会主义时期的百家争鸣和战国时期的百家争鸣的评价不正确的是[ ]

A．都处在一种新的社会制度开始确立时期

B．都主张自由争论

C．都促进了中国文化的发展

D．都在实施一段时间后被迫结束

（）不是基本的操作系统。

A、批处理操作系统

B、分时操作系统

C、实时操作系统

D、网络操作系统

电子金融创新的主要功能是( )。

A．把电脑技术应用于金融资产的交易过程

B．把电脑技术应用于金融资产的交割过程

C．把电脑技术应用于金融信息的收集、分析、传播、交流和金融资产的管理过程

D．把电脑技术应用于金融风险的分散过程

Y—100压力表的弹簧管是（）。